5.1 Creating and Freeing Pixmaps
Pixmaps can only be used on the screen on which they were created.
Pixmaps are off-screen resources that are used for various operations,
for example, defining cursors as tiling patterns
or as the source for certain raster operations.
Most graphics requests can operate either on a window or on a pixmap.
A bitmap is a single bit-plane pixmap.
To create a pixmap of a given size, use
XCreatePixmap().
To free all storage associated with a specified pixmap, use
XFreePixmap().
Christophe Tronche, ch@tronche.com